It's been a while since I played it, since my copy was damaged from a leak in the trunk of my car while I was living in it, but I believe most if not all of the trailer is tracked with Elmer Bernstein's rejected score to the film, released by Varese Sarabande with two of his other rejected film scores, in a set. I think it's sold out.
Yep, it's the original Bernstein score. I have to say, as much as I like Horner's re-scoring, I have NO idea why Disney dumped Bernstein's score. I have played the Varese CD against several sequences on the DVD, and they work wonderfully, especially the entire ending sequence. (I will admit, I had to do a bit of audio finessing to match Bernstein's music with the final picture edit, but it just sends chills down your spine.)